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85504936 = 23112294243
BaseRepresentation
bin1010001100010…
…11001110101000
312221220002201111
411012023032220
5133342124221
612252400104
72055531346
oct506131650
9187802644
1085504936
11442a1140
1224776034
1314939c4a
14b4da996
15778ebe1
hex518b3a8

85504936 has 32 divisors (see below), whose sum is σ = 175701600. Its totient is φ = 38687040.

The previous prime is 85504919. The next prime is 85504949. The reversal of 85504936 is 63940558.

It is a super-2 number, since 2×855049362 = 14622188160728192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18031 + ... + 22273.

It is an arithmetic number, because the mean of its divisors is an integer number (5490675).

Almost surely, 285504936 is an apocalyptic number.

It is an amenable number.

85504936 is an abundant number, since it is smaller than the sum of its proper divisors (90196664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85504936 is a wasteful number, since it uses less digits than its factorization.

85504936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489 (or 4485 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 85504936 is about 9246.8879089129. The cubic root of 85504936 is about 440.5518832520.

The spelling of 85504936 in words is "eighty-five million, five hundred four thousand, nine hundred thirty-six".

Divisors: 1 2 4 8 11 22 44 88 229 458 916 1832 2519 4243 5038 8486 10076 16972 20152 33944 46673 93346 186692 373384 971647 1943294 3886588 7773176 10688117 21376234 42752468 85504936